Multi-purpose dry cargo vessel for ice navigation

FIELD: shipbuilding; multi-purpose dry cargo vessels for carrying cargoes in water areas covered with ice and not covered with ice.

SUBSTANCE: proposed multi-purpose dry cargo vessel has hull with fore and aft extremities and sides provided with ice strengthening members. Hull bottom in aft extremity has inclined surface. Extent of cargo holds is no less than half length of vessel and maximum breadth is no less than ¾ of ship's extreme breadth. Main propulsion plant with propulsor is swivel in construction. Slewing axis of main propulsion plant is deflected at angle α from vertical in CL or in plane parallel to CL. Axis of thrust vector is also inclined at angle α from normal relative to slewing axis of main propulsion plant. Angle satisfies condition 0<α≤β/2, where β is angle whose magnitude is equal to magnitude of average angle of inclination of ship's bottom surface in aft extremity relative to ship's waterplane on inclined section of bottom located below level of point of intersection of main propulsion plant slewing axis with propulsor thrust vector axis.

EFFECT: reduced usage of material; enhanced survivability and durability of vessel.

15 cl, 4 dwg

 

The invention relates to shipbuilding, in particular for dry-cargo ships intended for the carriage of General cargo, timber and stacked timber, bulk cargo (wood chips, coal, fertilizers), as well as for transportation of containers of ISO standards and can be used for the carriage of goods by water area as covered with ice and pure water.

The prior art universal General cargo vessels and container ships (see Dopatka R., A. perepechko Book on the courts. Leningrad: Sudostroenie, 1981, p.18-21).

The court has a well-developed handling means in the form of cargo booms with winches located on the open deck, or the newer ships as cargo cranes with electric or hydraulic drive.

General cargo vessels have four to six holds and the twin decks, that are necessary to accommodate different types of cargo. They are designed almost exclusively for the carriage of General cargo in the package. On ships General cargo have many masts, which are used for equipment cargo arrows. Along with cargo arrows you can see the cargo cranes. Such vessels all the accommodations for the crew and passengers are usually found in a closed superstructure above the engine room. Depending on the location the location the FL engine room housing the add-in is in the stern, shifted aft or located in the middle of the ship.

For loading and unloading heavy loads are installed above holds heavy boom that can lift loads from 30 to 300 tons General cargo must be located in the holds so that he is not moved even when very large roll angles, as this may lead to topple and result in a loss of a vessel.

Known universal General cargo vessels. This is a single-screw vessels are deadweight 14-20 thousand tons, speed 13-16 km and has a well-developed and very simple handling means. Engine with low - or medium-speed diesel engines, as well as residential add-ons are in the stern. They can also be used for transportation of bulk cargo, containers and vehicles.

As for container ships, as you know there are two basic types of containers: ISO container dimensions 6,1×2,44×2.44 m and containers sizes 12,2×2,44×2.44 m, and is known for the special court, which can be fastened and transport containers (see Dopatka R., A. perepechko Book on the courts. Leningrad: Sudostroenie, 1981, p.18-21).

In recent years, many court for General or bulk cargo were rebuilt and equipped wholly or partly for the carriage of containers. Thus arose on konteinernye court limited the loading area. They are used primarily for the transportation of General cargo in non-standard packaging and transportation of a certain number of standard containers.

The equipment of vessels for transportation of containers consists mainly in the fact that the holds have guides of profiled steel in the vertical position establish and fix the container, which prevents horizontal movement of the roll of the court. Some containers are transported as deck cargo. Containers transported on the deck, depending on the sizes fit into one, two, three and even four rows. Ships constructed exclusively for the carriage of containers, called container. Container capacity of modern container vessels, as a result of equipment holds and sizes of decks, is very great; for vessels with a deadweight of 60 thousand tons, she is 3 thousand 20-ft containers.

Known vessels with horizontal cargo intended for transportation of cargoes in containers, on pallets or in automobile trailers and semi-trailers that are loaded and unloaded horizontally.

Goods "rolled" on a vessel on the poll-trailers, carriages and platforms or on its own wheels through the gate in nose, in the stern or sides.

Also in the prior art it is known megateli the e dry cargo vessel, comprising a housing with double sides and deck quarterdeck, stacked bow superstructure, cargo holds, the width of which is greater than the width of the cargo hatch, the sets of sheets to him, aft engine room, Lugovoe closing, feed ramp and cargo handling device in the form of a gantry crane. Flooring covers lukwago closing is performed on the same level with the deck of quarterdeck and docked to it, creating the deck and in the cargo hold of the transverse bulkheads freely installed in a vertical position shields. One of the shields - feed attached to the aft bulkhead hinge split node and both sides have solid flooring, and along the long side edges has a flange (type appealing), which he addressed to the aft transverse bulkhead of the hold. On double sides from the hold of the established vertical columns made flush with the longitudinal coaming cargo doors, and locking devices that interact with a response device nodes located on the shields. Retainers provide the locking of the panels in their vertical position and a horizontal position (see EN 2057677 C1, VW 25/18, 10.04.1996).

A disadvantage of the known technical solutions is that their design does not provide for operation in waters covered with ice, and open water they are not providing the have enough emergency stability, because of what decreases survivability, durability and efficiency of the vessel.

In the prior art it is known icebreaking vessel, comprising a housing with a bow and stern parts and at least one propulsion node with a rotating propeller screw. Moreover, the Assembly of such a vessel is made rotatable around the vertical axis, and the bottom rear part of the body is inclined relative to the horizontal plane lealani surface (see EN 2075421 C1, VW 35/08, 20.03.1997).

The disadvantage of the above vessel is low balanced tractive effort against the hull.

Task to be solved by the present invention is directed, is to increase the durability and survivability of the vessel, as well as improving the efficiency and effectiveness of performance multipurpose dry-cargo ships of ice class.

The problem is solved due to the fact that multi-purpose dry-cargo vessel of ice navigation according to the invention includes a housing with fore and aft ends, with flanges made with ice-strengthened, double bottom, including the second bottom and the bottom, and the bottom, at least in the aft end made with an inclined surface, with cargo holds, upper deck and includes superstructure and engine room, cargo equipment, shipboard devices and systems and, at least one rotatable main propulsion system with propulsion and cargo holds limited longitudinal and transverse bulkheads and provided with a bottom at least partially coincident with the second bottom of the vessel, as well as hatches and multiple waterproof lukovima the closure, preferably with hydraulic actuators located outside light hatch, and form total cargo bilge compartment with a total length of not less than half the length and the greatest width of not less than three quarters of the maximum breadth of the vessel, and the upper ends of at least part of the bulkhead holds supplemented placed above the upper deck coamings, forming, at least two longitudinal beams, in addition, the rotary axis of the main propulsion system made deflected from the vertical diametrical or the parallel plane of the vessel at an angle αand the axis of the thrust vector of the propulsion main propulsion also rejected on the corner α from normal to the rotary axis of the main propulsion system, the angle α satisfies the condition 0<α≤β/2 β angle whose magnitude is equal to the average angle of inclination the surface of the bottom of the ship, at least in the aft end to the loop plane of the waterline of the vessel, at least on the inclined part of the bottom, the positioning below the point of intersection of rotary axis main propulsion with the axis of the thrust vector of the propulsion device.

Multipurpose dry cargo vessel can contain at least two rotary main propulsion system, located at one end of the vessel, in which the hull is made with an inclined surface, and each main engine installation can be performed with the possibility of rotation on the corners, providing the vessel turns in any direction or change of direction of the motion vector to the opposite.

The main engine unit can be provided with at least one electric motor and propulsion main propulsion blade made in the form of a propeller, mostly reversible type.

Propeller in position in front of or behind the turning axis of the main propulsion system can be tilted axis vector thrust down in the direction of inclination of the surface of the bottom aft end with the ability to create thrust, providing movement of the vessel aft end forward, and in a position behind or in front of the turning axis of the main propulsion axis thrust vector can be located predominantly parallel to the loop plane of the waterline with the ability to provide traction for the movement of the vessel nasal tip forward.

Aft and fore end of the vessel may contain slanted letalone surface.

The vessel can contain the, at least one rotatable main propulsion system in the aft end and turning the main propulsion system in the nasal tip.

At least for the greater part of the length of the cargo hold of the branch vessel can be performed with double sides, consisting of the inner and outer sides, the inner of which is structurally and functionally can be combined with at least one addressed to the Board of longitudinal bulkhead, at least one cargo hold.

Double Board can be divided by watertight bulkheads in sealed compartments, at least some of which are located in the lower half of the height of the double sides, can form the ballast tanks, and the greater part of the length of the double sides in the top half is made through the corridors.

At least, the main structural elements of the hull and superstructure can be made entirely of welded steel, and the hull is made with ice-strengthened structures external sides in the zones of possible direct impact of ice loads, including the intermediate frames of rolled bulb flat profile, the intermediate platform, aperture and bearing stringers mainly of welded t-shaped profile.

Double bottom can be divided into the watertight bulkheads in sealed compartments, at least a large part of which can form the ballast tanks with a height up to 1 m

Hatch closure holds can be made transformable type, such as hinged or folding sliding when opening or closing the hatch.

Waterproof hatch covers may be provided with elastic sealing of closed-cell insulation material, for example rubber, is placed around the perimeter of the hatch and on the joints of the sections of the hatch covers and distributed at least along the perimeter of the hatch quick shirakami.

Cargo holds can be designed for carrying General cargo, timber, packaged, including lengthy materials, such as timber; bulk cargo, such as wood chips, coal, fertilisers, bagged cargoes, including transported in containers of international standard ISO, and can be provided not less than two mounted on the vessel electro hydraulic cranes lifting capacity corresponding to the maximum design loaded weight of a single under the permissible load of the container, for example, the international standard ISO.

Ship devices may include anchor, mooring and towing boat and devices with outboard and internal ladders, rescue tools.

The vessel may be about oruuano life support systems, crew, maintain environmental comfort in residential, common areas and other premises, as well as fire protection systems and systems that ensure the prevention of deterioration of the ecological environment.

The technical result of the present invention is to enhance site navigation multipurpose dry cargo vessel by providing the possibility of navigation in ice covered waters, enhancing the efficiency and effectiveness of performance multipurpose dry cargo vessel ice class in the waters covered by ice, by optimizing the characteristics of the location of the propulsion device and, accordingly, optimization of the vector of flow of water to be discharged from the propulsion predominantly parallel to the surface of the bottom, which allows to reduce the frictional drag on the hull. Increase efficiency and effectiveness of the handling characteristics of the vessel contributes to the optimization of the process of ice breaking due to the optimally chosen angles placement of main propulsion and thruster when the vessel is mainly aft end forward, without compromising the characteristics of the vessel when moving in open water mainly nasal tip forward.

Execution propulsion host rotary axis deflected from the vertical by an angle of close to zero is about half the size of an average angle of inclination of the surface of the bottom of the vessel to the plane of the loop waterline of the vessel simultaneously with rejected at the same angle with the axis of the thrust vector of the propulsion unit, provides the specified technical result by changing the thrust vector of the propeller rotation propulsion node around its rotary axis.

Also the technical result achieved by the invention is to reduce material and weight while increasing the survivability and durability of the vessel by performing ship coamings framing on top of the corresponding bulkhead holds and forming at least two longitudinal beams, which increases the overall Flexural strength of the vessel and compensates for the inevitable weakening of the bearing capacity of the upper deck openings of cargo holds.

The invention is illustrated by drawings, where:

figure 1 - multi-purpose dry-cargo vessel of ice navigation, side view with partial cut;

figure 2 is a schematic depiction aft end of the vessel in the position of the main propulsion system, designed for the movement of the ship, mainly the nasal tip forward;

figure 3 - the same, in the position of the main propulsion system, designed for the movement of the vessel, mainly aft end forward;

figure 4 - fragments of double sides and double bottom of the vessel cross section in the area of the cargo hold compartment.

Multipurpose dry-cargo vessel of ice navigation includes a housing 1 with the bow and KOR the OIC ends 2 and 3 respectively, with sides of 4, made with ice-strengthened (not shown), double bottom 5, including a second bottom 6 and bottom 7, cargo holds 8 and the upper deck 9. The vessel also includes a superstructure 10 and an engine room (not shown), truck equipment 11, shipboard devices and systems and two rotary main propulsion system 12 with the propellers 13.

The bottom 7 in the aft end 3 is made with an inclined surface 14.

Cargo holds 8 is limited to 15 longitudinal and transverse bulkheads 16 and provided with a bottom 17 is coincident with the second bottom 7 of the vessel, as well as manholes 18 and multiple waterproof lukovima closing 19 with hydraulic actuators (not shown)located outside light hatch 18 and form total cargo bilge compartment 20 with a total length of more than half of the length and the greatest width more than three quarters of the maximum width of a vessel.

Hatch closure 19 holds 8 made transformable type, folding sliding when opening or closing the hatch 18.

For clarity, are presented in figure 1 the image shows the hatch closed in the folded and unfolded position, and also shows the possible location of the cargo hatch closure and on the upper deck in the area of the cargo hold.

Waterproof Lucas closed the th 19 is provided with an elastic seal (not shown) of closed-cell insulation material - rubber placed around the perimeter of the hatch 18 and joints (not shown) hatch covers 19 and distributed around the perimeter of the hatch quick shirakami (in the drawings conventionally not shown).

The upper ends of the bulkheads 15 and 16 holds 8 supplemented placed above the upper deck 9 coamings 21, forming two longitudinal beams 22.

The rotary shaft 23 of the main propulsion system 12 is deflected from the vertical 24 in a plane parallel to the median plane of the ship, on the corner α10°. The axis 25 of the thrust vector of the propulsion main propulsion system 12 also rejected on the corner α from the normal 26 to the rotary axis 23 of the main propulsion system 12.

The average angle β the inclination of the surface 14 of the bottom 6 of the vessel at the aft end 3 to the plane 27 of the circuit waterline of a vessel on the inclined part of the bottom 6, located below the point of intersection of rotary axis 23 of the main propulsion system 12 with the axis 25 of the thrust vector of the propeller equal to 20°.

Angle α satisfies the condition 0<α≤β/2 and is equal to the half angle β.

Figure 1 angle β shown between the inclined bottom surface in the aft end and a plane parallel to the plane of the loop waterline of a vessel.

Multipurpose dry cargo vessel contains two rotary main propulsion system 12, R is polozhenie in one end of the ship aft. Each main engine unit 12 is executed with a possibility of rotation angles, providing the vessel turns in any direction or change of direction of the motion vector to the opposite.

Each main engine unit 12 is equipped with one electric motor (in the drawings conventionally not shown), and the mover 13 each main propulsion blade 12 is in the form of the propeller 28 reversible type.

Propeller 28 in position in front of or behind the swivel axis 23 of the main propulsion system 12 is tilted axis 25 of the thrust vector down in the direction of inclination of the surface 14 of the bottom 6 aft end 3 with the ability to create thrust, providing movement of the vessel aft end of the 3 forward and into position behind or in front of the swivel axis 23 of the main propulsion system 12, the axis 25 of the thrust vector is predominantly parallel to the plane 27 of the circuit waterline with the ability to provide traction for the movement of the vessel nasal tip 2 forward.

In the greater part of the length of the cargo hold compartment 20, the vessel is made with double sides 4, consisting of 29 internal and external 30 boards. Internal Board 29 are structurally and functionally combined with addressed to the Board 4 longitudinal bulkheads 15 cargo holds 8.

Double Board 4 is divided by watertight bulkheads 31 n is tight compartments 32, some of which are located in the lower half of double height Board 4, forms a ballast tank 33, and the greater part of the length of the double sides 4 in its upper half is made through corridors 34.

The main structural elements of the housing 1 and the superstructure 10 is made entirely of welded steel, and the housing 1 of the vessel is made with ice-strengthened (not shown) of the external structures of the flanges 30 in the zones of possible direct impact of ice loads, including the intermediate frames (not shown) of the rolled bulb flat profile, intermediate platform (not shown), the diaphragm (not shown) and bearing stringers (not shown) of the welded mainly t-shaped profile.

Double bottom 5 divided by watertight bulkheads 35 on tight compartments 36, the majority of which forms a ballast tank 37 height up to 1 m

Cargo holds 8 are intended for transportation of General cargoes, timber, packaged, including lengthy materials, such as timber; bulk cargo, such as wood chips, coal, fertilisers, bagged cargoes, including transported in containers 38 international ISO standard. Loading and unloading cargo holds 8 is provided cargo equipment 12 - two of Simon the new ship electro-hydraulic cranes, corresponding to the maximum design loaded weight of a single under the permissible load of the container of the international standard ISO.

Ship devices include an anchor device 39, mooring and towing (not shown) and boat device 40, outboard and internal ladders (not shown), rescue means (not shown).

The vessel is equipped with a system (not shown) life support crew, the maintenance of ecological comfort in residential, common areas and other facilities, and fire protection systems (in the drawings conventionally not shown) and systems that ensure the prevention of deterioration of environmental pollution (not shown).

1. Multipurpose dry-cargo vessel of ice navigation, characterized in that it includes a housing with fore and aft ends, with flanges, made with ice-strengthened, double bottom, including the second bottom and the bottom, and the bottom, at least in the aft end is made with an inclined surface, with cargo holds, upper deck and includes superstructure and engine room, cargo equipment, shipboard devices and systems and at least one rotatable main propulsion system with propulsion and cargo holds limited longitudinal and transversal what arborcare and provided with a bottom, at least partially coincident with the second bottom of the vessel, as well as hatches and multiple waterproof lukovima the closure preferably hydraulic actuators located outside light hatch, and form total cargo bilge compartment with a total length of not less than half the length and the greatest width of not less than three quarters of the maximum breadth of the vessel, and the upper ends of at least part of the bulkhead holds supplemented placed above the upper deck coamings, forming at least two longitudinal beams, in addition, the rotary axis of the main propulsion system made deflected from the vertical diametrical or the parallel plane of the vessel on the corner αand the axis of the thrust vector of the propulsion main propulsion also rejected on the corner α from normal to the rotary axis of the main propulsion system, the angle α satisfies the condition 0<α≤β/2 β - an angle whose magnitude is equal to the average angle of inclination of the surface of the bottom of the ship, at least in the aft end to the loop plane of the waterline of the vessel, at least on the inclined part of the bottom located below the point of intersection of rotary axis main propulsion with the axis of the thrust vector of the propulsion device.

2. Multi-purpose dry cargo ship according to claim 1, ex is different, however, it contains at least two rotary main propulsion system, located at one end of the vessel, in which the hull is made with an inclined surface, and each main engine unit is made with the possibility of rotation on the corners, providing the vessel turns in any direction or change of direction of the motion vector to the opposite.

3. Multi-purpose dry cargo ship according to claim 1, characterized in that the main engine unit provided with at least one electric motor and propulsion main propulsion blade made in the form of a propeller mostly reversible type.

4. Multi-purpose dry cargo ship according to claim 3, characterized in that the propeller in position in front of or behind the turning axis of the main propulsion unit is tilted axis vector thrust down in the direction of inclination of the surface of the bottom aft end with the ability to create thrust, providing movement of the vessel aft end forward, and in a position behind or in front of the turning axis of the main propulsion axis thrust vector is predominantly parallel to the loop plane of the waterline with the ability to provide traction for the movement of the vessel nasal tip forward.

5. Multi-purpose dry cargo ship according to claim 1, characterized in that kormawa and bow end of the vessel contain slanted letalone surface.

6. Multi-purpose dry cargo ship according to claim 5, characterized in that it comprises at least one rotatable main propulsion system in the aft end and turning the main propulsion system in the nasal tip.

7. Multi-purpose dry cargo ship according to claim 1, characterized in that, at least for the greater part of the length of the cargo hold of the branch vessel is made with double sides, consisting of the inner and outer sides, the inner of which are structurally and functionally combined with at least one addressed to the Board of longitudinal bulkhead, at least one cargo hold.

8. Multi-purpose dry cargo ship according to claim 7, characterized in that the dual Board divided by watertight bulkheads in sealed compartments, at least some of which are located in the lower half of double height Board, forms a ballast tank, and the greater part of the length of the double sides in the top half is made through the corridors.

9. Multi-purpose dry cargo ship according to claim 7, characterized in that at least the main structural components of the hull and superstructure are made of fully welded steel, with the hull of the yacht with ice-strengthened structures external sides in the zones of possible direct impact of ice loads, including centuries is found intermediate frames of rolled bulb flat profile, the intermediate platform, aperture and bearing stringers mainly of welded t-shaped profile.

10. Multi-purpose dry cargo ship according to claim 1, characterized in that the double bottom separated by watertight bulkheads in sealed compartments, at least a large part of which forms a ballast tank height up to 1 m

11. Multi-purpose dry cargo ship according to claim 1, characterized in that the hatch closure holds made transformable type, such as hinged or folding sliding when opening or closing the hatch.

12. Multi-purpose dry cargo ship according to claim 1, characterized in that the waterproof hatch covers are secured with an elastic seal of the closed-cell insulation material, for example rubber, is placed around the perimeter of the hatch and on the joints of the sections of hatch covers, and distributed at least along the perimeter of the hatch quick shirakami.

13. Multi-purpose dry cargo ship according to claim 1, characterized in that the cargo holds intended for the carriage of General cargoes, timber, packaged, including lengthy materials, such as timber; bulk cargo, such as wood chips, coal, fertilisers, bagged cargoes, including transported in containers of international standard ISO, and provided with at least two mounted on the vessel ele is tragikomicheskii cranes, corresponding to the maximum design loaded weight of a single under the permissible load of the container, for example, the international standard ISO.

14. Multi-purpose dry cargo ship according to claim 1, characterized in that ship devices include anchor, mooring and towing and boat device, outboard and internal ladders, rescue tools.

15. Multi-purpose dry cargo ship according to claim 1, characterized in that the vessel is equipped with life-support systems of the crew, the maintenance of ecological comfort in residential, common areas and other premises, as well as fire protection systems and systems that ensure the prevention of deterioration of the ecological environment.



 

Same patents:

FIELD: shipbuilding; carrying liquid cargo in water areas free from ice and in water areas covered with ice.

SUBSTANCE: proposed ship has fore and aft extremities of hull with main engine plant and propeller; engine plant is preferably mounted in aft extremity and is turnable relative to axis deflected from vertical in CL or in plane parallel to it. When running in water area covered with ice, ship moves with her aft extremity forward and vector of propeller thrust is directed at angle relative to plane of waterline contour upward away from center in ship's length, mainly in parallel with average angle of inclination of lower section of ship's bottom near main engine plant. When running in water area free from ice, ship moves with her fore extremity forward and vector of propeller thrust is directed in parallel with plane of waterline contour towards center in ship's length. Direction of propeller thrust vector is changed by turning the main engine plant around inclined axis which is deflected through angle α; vector of engine thrust of main engine plant is also deflected from normal to slewing axis of main engine plant through angle which satisfies the condition 0<α<β/2, where β is angle equal to average angle of inclination of bottom surface to respective extremity of ship in plane of waterline contour at inclined section of bottom located below point of intersection of slewing axis of main engine plant with axis of propeller thrust vector.

EFFECT: enhanced economical and operational efficiency; improved sea-going qualities in water area covered with ice.

24 cl, 7 dwg

FIELD: shipbuilding; methods of transportation of liquid cargoes in bulk by means of tankers.

SUBSTANCE: proposed method includes loading of cargoes on board the tanker or unloading them from tanker, motion of tanker in open water area or in water area covered with ice to point of delivery with the aid of main propulsive plant provided with swivel axle which is deflected from vertical in tanker CL and propeller with thrust vector axis also deflected from normal towards swivel axle of main propulsive plant. During navigation in ice-covered area, tanker moves with its aft extremity forward; in this case, thrust vector of propeller is directed at angle relative to waterplane contour upward in parallel relative to inclination of lower section of tanker bottom surface at area where propulsive plant is installed. During navigation in open water area, tanker runs with its fore extremity forward and propeller thrust vector is directed in parallel with waterplane contour.

EFFECT: enhanced operational and economical efficiency.

25 cl, 7 dwg

FIELD: the invention refers to shipbuilding.

SUBSTANCE: the ship's propulsor-rudder complex has a tube firmly connected with the hull of the ship and also fixed in the tube on radial and axial bearings a rotary propulsive block with a capsule in the upper part and a propulsor in the lower part. The radial bearings are located along the height of the tube and the axial bearing is installed on the upper end of the tube. The rotary ring of the axial bearing is firmly connected with the capsule with the aid of strengthening parts and fulfilled with possibility of application to the ring of rotation force from the mechanism for turning the block.

EFFECT: such fulfillment of the complex allows to simplify its construction and increase reliability of work.

1 cl, 3 dwg

FIELD: the invention refers to shipbuilding namely to propulsor-rudder complexes.

SUBSTANCE: a propulsor-rudder complex has a tube firmly connected with the hull of the ship and a rotary-propulsive block fixed on the tube. The block has a capsule in its upper part and in the lower part it has a gondola conjugated with the propulsor. The gondola is connected with the capsule with the aid of a bracket formed out of a disc and of no less then two stream-lined walls placed between the gondola and the disc. At that the fixing of the disc in the capsule is fulfilled detachable.

EFFECT: such fulfillment of the complex allows to increase reliability of fixing its propulsor and improve conditions of technical maintenance.

4 dwg

FIELD: carrying systems for shipboard propulsive plants; methods of installation of engine modules.

SUBSTANCE: proposed carrying systems includes structure located on the outside of ship's hull and engine module located beyond ship's hull, main engine and propeller. Engine module is provided with coupling device on its end which is opposite to propeller for connecting with mating parts on said structure. Engine module is connected to said structure by longitudinal motion in parallel with shaft connected with engine. Rod-type connector includes flexible coupling conducting parts surrounded by insulating material.

EFFECT: facilitated procedure of mounting and dismantling shipboard propulsive plant.

11 cl, 16 dwg

The invention relates to shipbuilding, in particular, to a drive system of the propeller, as well as to a method for providing motion of the ship and management course

The invention relates to shipbuilding and concerns the design of a hull aft end of a vessel equipped with propulsion and steering complex (DRC)

The invention relates to shipbuilding and concerns the design of a hull aft end of a vessel equipped with propulsion and steering complex (DRC)

The invention relates to shipbuilding, namely the ship's propulsion and steering systems

The invention relates to the field of marine propulsion and steering complexes

FIELD: shipbuilding; carrying liquid cargo in water areas free from ice and in water areas covered with ice.

SUBSTANCE: proposed ship has fore and aft extremities of hull with main engine plant and propeller; engine plant is preferably mounted in aft extremity and is turnable relative to axis deflected from vertical in CL or in plane parallel to it. When running in water area covered with ice, ship moves with her aft extremity forward and vector of propeller thrust is directed at angle relative to plane of waterline contour upward away from center in ship's length, mainly in parallel with average angle of inclination of lower section of ship's bottom near main engine plant. When running in water area free from ice, ship moves with her fore extremity forward and vector of propeller thrust is directed in parallel with plane of waterline contour towards center in ship's length. Direction of propeller thrust vector is changed by turning the main engine plant around inclined axis which is deflected through angle α; vector of engine thrust of main engine plant is also deflected from normal to slewing axis of main engine plant through angle which satisfies the condition 0<α<β/2, where β is angle equal to average angle of inclination of bottom surface to respective extremity of ship in plane of waterline contour at inclined section of bottom located below point of intersection of slewing axis of main engine plant with axis of propeller thrust vector.

EFFECT: enhanced economical and operational efficiency; improved sea-going qualities in water area covered with ice.

24 cl, 7 dwg

FIELD: shipbuilding; submarine ships breaking ice cover by resonance flexural gravitational waves.

SUBSTANCE: proposed device includes submarine ship running under ice at resonance velocity. Submarine ship is provided with hair coat on her upper surface at point of arising of first trough of flexural gravitational waves.

EFFECT: enhanced efficiency of ice breaking.

1 dwg

FIELD: shipbuilding; submarine vessels breaking ice cover.

SUBSTANCE: proposed method consists in forming area of reduced pressure under ice cover. Area of reduced pressure is formed in space between ice and ship which is formed by rigid folding envelope. Lower edge of this envelope is secured to upper surface of ship and upper edge is secured to lower surface of ice cover by means of buoyancy elements. Envelope is preliminarily divided into lower and upper parts by means of membrane. Membrane is provided with device for converting the membrane from watertight to non-watertight, shutters for example.

EFFECT: enhanced efficiency of ice breaking in limited areas.

2 dwg

FIELD: transportation of liquid cargoes in bulk, inclusive use of tankers.

SUBSTANCE: proposed method includes transportation on land from points of production, storage or processing by means of pipe lines and/or ground transport, transshipment of cargoes to storage reservoirs of temporary storages, loading of cargoes on board tanker and motion of tanker to point of delivery. Tanker used for transportation of cargo has hull with fore and aft extremities, bottom, inner bottom, sides, upper deck and cargo zone with cargo tanks located over larger part of tanker length. Tanker is provided with double sides over larger part of its length; sides have outer and inner plating forming inter-side space divided vertically by upper platform located in upper third of double side freeboard. Inner plating of side is structurally combined with respective longitudinal bulkheads of at least part of cargo tanks. Longitudinal bulkheads are flat in construction and are provided with vertical pillars on section from double bottom as far as inter-side platform and with longitudinal stiffeners on section from upper inter-side platform as far as upper deck.

EFFECT: enhanced economical efficiency of transportation of liquid cargoes in bulk.

25 cl, 9 dwg

FIELD: shipbuilding; construction of ice-type tanker hulls.

SUBSTANCE: proposed tanker has hull with bottom, inner bottom, vertical sides, ballast tanks, upper deck and cargo zone with cargo tanks located over larger part of its length. Double sides have inner and outer plating forming inter-side space divided vertically by upper inter-side platform located in upper third of tank height. Inner plating of side is structurally combined with respective longitudinal bulkheads of some cargo tanks. Longitudinal bulkheads are flat in construction and are provided with vertical pillars on section extending from inner bottom as far as upper inter-side platform and with longitudinal stiffeners on section from upper inter-side platform as far as upper deck; framing members are located inside inter-side space. Tanks are divided in pairs by center corrugated longitudinal bulkhead; corrugated bulkheads are provided with horizontal corrugations and with at least one pillar located on deep frame in each tank.

EFFECT: enhanced damage resistance and durability of tanker.

17 cl, 6 dwg

FIELD: shipbuilding; construction of ice-type tankers.

SUBSTANCE: tanker hull has bottom, inner bottom, vertical sides, ballast tanks, upper deck and cargo zone with cargo tanks located on larger part of its length. Sides are of double construction on larger part of length of cargo zone and are provided with ice strengthening members and outer and inner plating forming inter-side space divided vertically by upper inter-side platform located in upper third of tank height. Inner plating of side in some tanks is structurally combined with respective longitudinal bulkheads directed towards it. Longitudinal bulkheads are flat in construction and are provided with vertical pillars on section extending from double bottom as far as upper inter-side platform and with longitudinal stiffeners on section from upper inter-side platform as far as upper deck; framing members are located inside inter-side space.

EFFECT: enhanced damage resistance and durability of tanker.

17 cl, 4 dwg

FIELD: ice breaking technique; amphibian hovercraft breaking ice cover by resonance method.

SUBSTANCE: prior to starting ice breaking jobs, stress concentrators in form of grooves are made in ice. Grooves are made in form of net similar to net of cracks formed in ice cover behind ship's stern after passage at resonance speed. Device proposed for realization of this method is made in form of frame mounted in aft section of ship; this frame is made from perforated tubes for spraying chemical agents on ice in form of net similar to net of cracks arising in ice cover after passage of ship at resonance speed.

EFFECT: enhanced efficiency of ice breaking.

3 cl, 3 dwg

Ice-breaker ship // 2276037

FIELD: the invention refers to shipbuilding particularly to ice-breaker ships.

SUBSTANCE: an ice-breaker ship has an above-water part which includes a control system, a milling cutters' drive, a passengers' mess; an underwater part which includes compartments for air, fuel, a propulsor; two lateral parts which have a communication system, a hydraulic drive for displacement in the vertical plane of the above-water part relatively to the underwater part and having at the front wedges for cutting-in and breaking ice. The front construction of the upper and the underwater parts are designed in such a manner that the ice plate getting between them is destroyed from arising stress of the bend.

EFFECT: increases speed of a ship's passage through the water area covered with ice at relative reducing of energy consumption for breaking ice.

1 cl, 4 dwg

Ice-breaking ship // 2268193

FIELD: shipbuilding; building of icebreaking ships.

SUBSTANCE: proposed icebreaking ship is provided with ice-removal strake in area of stern on flat section of bottom; this strake is wedge-shaped in plan and pointed end of wedge is oriented towards stern; it is also provided with icebreaking teeth mounted in front of and behind swinging propellers; they project below level of ice-removal strake.

EFFECT: enhanced protection of ship's propeller-and-steering complex against ice both at ahead and astern running.

4 dwg

FIELD: shipbuilding; ice-breaking submarine vessels cleaning water basins from ice cover.

SUBSTANCE: proposed device includes submarine vessel exciting resonance flexural gravitational waves while running under ice at resonance speed. Upper deck of ship may be deformed to state of mirror image of flexural gravitational waves excited by ship by means of drives mounted under it and actuated by ultrasonic sensors which are mounted on deck for measuring the vertical distance between upper deck and lower surface of ice cover.

EFFECT: enhanced efficiency of ice breaking.

1 dwg

The invention relates to shipbuilding, in particular, to the design of the hull
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